Fabrica Technology — Ken OnoThoughts on fractional CTO work, architecture, AI, and building products.https://fabrica.tech/Delete or Tweak Your Skills to See How Well They Workhttps://fabrica.tech/blog/delete-or-tweak-your-skills-to-see-how-well-they-work/https://fabrica.tech/blog/delete-or-tweak-your-skills-to-see-how-well-they-work/The papers say agent context files cost more and don't reliably help — but the honest answer depends on your repo and your model. Here's a cheap way to measure your own setup, using features you're already shipping.Fri, 26 Jun 2026 00:00:00 GMTYour Local Dev Environment Needs an APIhttps://fabrica.tech/blog/local-dev-env-needs-api/https://fabrica.tech/blog/local-dev-env-needs-api/Process-compose and a thin wrapper gave my local dev stack one control plane for humans and agents — real readiness, structured status, and parallel worktrees without port collisions.Fri, 12 Jun 2026 00:00:00 GMTAn Evidence-First Scorecard for AI Engineeringhttps://fabrica.tech/blog/ai-engineering-maturity-scorecard/https://fabrica.tech/blog/ai-engineering-maturity-scorecard/An evidence-first AI engineering scorecard for small teams: have the agent inspect the repo, workflow evidence, automations, and agent instructions before asking humans how mature they feel.Sat, 23 May 2026 00:00:00 GMTNative from Web — When the Spec Is Already Runninghttps://fabrica.tech/blog/native-from-web-spec/https://fabrica.tech/blog/native-from-web-spec/Using a working web app as the behavioral spec for an Expo React Native app: hooks vs components, when cheaper models break down, and why parity needs a written trail for the next agent.Tue, 12 May 2026 00:00:00 GMTMaking SuperSubset: It's All About the Spechttps://fabrica.tech/blog/making-supersubset/https://fabrica.tech/blog/making-supersubset/Building SuperSubset taught me that the bottleneck in agentic development is the spec. The charts looked great. The tests passed. The product still failed.Sun, 03 May 2026 00:00:00 GMTStop Thinking in Prompts. Start Thinking in Skills.https://fabrica.tech/blog/think-in-skills/https://fabrica.tech/blog/think-in-skills/How to get more out of AI by treating skills — not prompts — as the unit of leverage. Lessons from a workshop on agentic engineering.Fri, 24 Apr 2026 00:00:00 GMTHello World: I Had AI Interview Me to Write This Posthttps://fabrica.tech/blog/hello-world/https://fabrica.tech/blog/hello-world/I built a system where AI interviews me instead of writing for me. Did the first interview hands-free while driving. Here's how it works.Wed, 15 Apr 2026 00:00:00 GMT